Color

#52ade5

#52ade5
hex#52ade5
rgbrgb(82, 173, 229)
hslhsl(203, 74%, 61%)
oklchoklch(0.715 0.119 238.6)
Closest name: Cerulean (#55aaee)Relative luminance 0.3734

Colors that go with #52ade5

Charcoal, Peru and Amber lead the list. Each partner is a real named colour with the reason it works — a wheel relationship, a neutral that carries it, or a pairing lifted from a palette or brand system that actually shipped — and every pair opens in the palette tool.

Tints & shades

Every swatch is its own page — click any to analyze it.

Harmonies

Complementary

Open in tool →

#e58a52

#52e5d4 · #5263e5

#e552ad · #ade552

Split-complementary

Open in tool →

#e55263 · #e5d452

#d452e5 · #e58a52 · #63e552

Contrast

#52ade5 as textRatioAAAA largeAAAFix
Aaon white
2.48:1failfailfail
  • AA: use #1b7bb6 as the text (4.61:1)
  • AAA: use #155d8a as the text (7.08:1)
  • AA: or shift the background to #3b3b3b (4.52:1)
  • AAA: or shift the background to #1a1a1a (7.02:1)
Aaon black
8.47:1passpasspassPasses AAA — no fix needed.

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #52ade5 as the background.

Brands using this color

Fonts for this mood

#52ade5 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #52ade5
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — direct_palette, edit_direction, check_palette, check_contrast — read-only, no key. Every direction it proposes comes with a /colors/d/… link: open it, lock what you like, paste the link back, and the agent edits rather than re-rolls.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #52ade5 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/52ade5-9cb0c4-df4e5d-1f222d-e9f1f0?lock=0&style=vibrant

Want the agent to remember your picks and write them into a living brand? Create a free BrandSweets workspace.

Machine-readable: color.md